\documentclass{article}
\usepackage[x11names, rgb]{xcolor}
\usepackage[utf8]{inputenc}
\usepackage{tikz}
\usetikzlibrary{snakes,arrows,shapes}
\usepackage{amsmath}
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\begin{document}
\pagestyle{empty}
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%

\enlargethispage{100cm}
% Start of code
% \begin{tikzpicture}[anchor=mid,>=latex',line join=bevel,]
\begin{tikzpicture}[>=latex',line join=bevel,]
  \pgfsetlinewidth{1bp}
%%
\pgfsetcolor{black}
  % Edge: 0 -- 1
  \draw [] (47bp,144bp) .. controls (43bp,133bp) and (38bp,119bp)  .. (33bp,108bp);
  % Edge: 0 -- 2
  \draw [] (57bp,144bp) .. controls (59bp,134bp) and (62bp,120bp)  .. (63bp,108bp) .. controls (64bp,92bp) and (64bp,87bp)  .. (63bp,72bp) .. controls (62bp,60bp) and (59bp,46bp)  .. (57bp,36bp);
  % Edge: 1 -- 2
  \draw [] (34bp,72bp) .. controls (38bp,61bp) and (43bp,47bp)  .. (48bp,36bp);
  % Node: 1
\begin{scope}
  \pgfsetstrokecolor{black}
  \draw (27bp,90bp) ellipse (27bp and 18bp);
  \draw (27bp,90bp) node {OFF};
\end{scope}
  % Node: 0
\begin{scope}
  \pgfsetstrokecolor{black}
  \draw (54bp,162bp) ellipse (30bp and 18bp);
  \draw (54bp,162bp) node {OFF SV};
\end{scope}
  % Node: 2
\begin{scope}
  \pgfsetstrokecolor{black}
  \draw (54bp,18bp) ellipse (29bp and 18bp);
  \draw (54bp,18bp) node {P CIRC};
\end{scope}
%
\end{tikzpicture}
% End of code

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\end{document}
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